US Bridges

Montclair Street over Prairie Creek

Fair

Wallowa County, Oregon · 2 Blks So HWY 82 · Structure no. 63B013000000000

Built
1952
73 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
27 ft
1 main span
Daily traffic
80
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Montclair Street over Prairie Creek is a wood or timber stringer/multi-beam or girder carrying Montclair Street over Prairie Creek in Wallowa County, Oregon. It was built in 1952, so it is 73 years old, older than the Oregon average of 49.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 80 vehicles a day, roughly 1% of them trucks, projected to reach 92 by 2025. The structure is 27 ft (8.2 m) long and 24 ft wide.

CarriesMontclair Street
CrossesPrairie Creek
Location2 Blks So HWY 82
RouteCity Street 0
StateOregon
Coordinates45.42398, -117.28304
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating13.6 US tons
Inventory rating10.4 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadH 20
Structure length27 ft (8.2 m)
Longest span26 ft (7.9 m)
Deck width24 ft (7.3 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic80 (2020)
Projected traffic92 by 2025
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Montclair Street over Prairie Creek built?

It was built in 1952, making it 73 years old in 2025.

What condition is Montclair Street over Prairie Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in September 2024.

How much traffic does Montclair Street over Prairie Creek carry?

About 80 vehicles per day (2020 count), of which roughly 1% are trucks.

How long is Montclair Street over Prairie Creek?

The structure is 27 ft (8.2 m) long with a longest span of 26 ft (7.9 m) and a deck 24 ft wide.

Who owns Montclair Street over Prairie Creek?

It is owned by the City or Municipal Highway Agency.